dom_parser.asp

W3Schools tutorial..web designing

the parser:</p>
<table width="100%" border="1" class="ex" cellspacing="0" id="table19">
<tr><td>
<pre>parser=new DOMParser();
xmlDoc=parser.parseFromString(txt,&quot;text/xml&quot;);</pre>
</td></tr>
</table>
<p>
<b>Code explained:</b></p>
<ul>
	<li>The first line creates an empty XML 
document object.</li>
	<li>The second 
line tells the parser to load a string called txt.</li>
</ul>

<p><b>Note:</b> Internet Explorer uses the <b>loadXML()</b> method to parse an XML 
string, while other browsers uses the <b>DOMParser</b> object.</p>


<hr />

<h2>Parsing an XML File - A Cross browser Example</h2>

<p>The following example loads an XML document (&quot;books.xml&quot;) into the XML parser:</p>

<table width="100%" border="1" class="ex" cellspacing="0" id="table21">
<tr><td>
<pre>&lt;html&gt;
&lt;body&gt;
&lt;script type=&quot;text/javascript&quot;&gt;
try //Internet Explorer
  {
  xmlDoc=new ActiveXObject(&quot;Microsoft.XMLDOM&quot;);
  }
catch(e)
  {
  try //Firefox, Mozilla, Opera, etc.
    {
    xmlDoc=document.implementation.createDocument(&quot;&quot;,&quot;&quot;,null);
    }
  catch(e) {alert(e.message)}
  }
try 
  {
  xmlDoc.async=false;
  xmlDoc.load(&quot;books.xml&quot;);
  document.write(&quot;xmlDoc is loaded, ready for use&quot;);
  }
catch(e) {alert(e.message)}
&lt;/script&gt;
&lt;/body&gt;
&lt;/html&gt;</pre>
</td></tr>
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<p><a target="_blank" href="tryit.asp@filename=try_dom_parser">Try it yourself</a>
</p>


<hr />
<h2>Error: Access Across Domains </h2>
<p>For security reasons, modern browsers does not allow access across domains.</p>
<p>This means, that both the web page and the XML file it tries to load, must be 
located on the same server.</p>
<p>The examples on W3Schools all open XML files located on the W3Schools domain.</p>
<p>If you want to use the example above on one of your web pages, the XML files 
you load must be located on your own server. Otherwise the xmlDoc.load() method, 
will generate the error &quot;Access is denied&quot;.</p>


<hr />

<h2>Parsing an XML String - A Cross browser Example</h2>
<p>The following code loads and parses an XML string:</p>
<table width="100%" border="1" class="ex" cellspacing="0" id="table24">
<tr><td>
<pre>&lt;html&gt;
&lt;body&gt;
&lt;script type=&quot;text/javascript&quot;&gt;
text=&quot;&lt;bookstore&gt;&quot;
text=text+&quot;&lt;book&gt;&quot;;
text=text+&quot;&lt;title&gt;Everyday Italian&lt;/title&gt;&quot;;
text=text+&quot;&lt;author&gt;Giada De Laurentiis&lt;/author&gt;&quot;;
text=text+&quot;&lt;year&gt;2005&lt;/year&gt;&quot;;
text=text+&quot;&lt;/book&gt;&quot;;
text=text+&quot;&lt;/bookstore&gt;&quot;;

try //Internet Explorer
  {
  xmlDoc=new ActiveXObject(&quot;Microsoft.XMLDOM&quot;);
  xmlDoc.async=&quot;false&quot;;
  xmlDoc.loadXML(text);
  }
catch(e)
  {
  try //Firefox, Mozilla, Opera, etc.
    {
    parser=new DOMParser();
    xmlDoc=parser.parseFromString(text,&quot;text/xml&quot;);
    }
  catch(e) {alert(e.message)}
  }
document.write(&quot;xmlDoc is loaded, ready for use&quot;);
&lt;/script&gt;
&lt;/body&gt;
&lt;/html&gt;
</pre>
</td></tr>
</table>

<p><a target="_blank" href="tryit.asp@filename=try_dom_parser2">Try it 
yourself</a></p>

<p><b>Note:</b> Internet Explorer uses the loadXML() method to parse an XML 
string, while other browsers uses the DOMParser object.</p>


<hr />

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